In the solution of the equation 5 minus 3X equals 2X +9, 3X is added to the equation 1st. Which of the following should be done next? Add -9, add -5, Add -2X

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asked Dec 14, 2017 166k views

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In the solution of the equation 5 minus 3X equals 2X +9, 3X is added to the equation 1st. Which of the following should be done next? Add -9, add -5, Add -2X

Mathematics
high-school

Johannes Schacht asked

by Johannes Schacht

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2 Answers

1 vote

well it should be add -9

5-3x=2x+9

+3x=+3x

5=5x+9

+-9 +-9

-4=5x

x=4/5

Jose M Lechon answered Dec 15, 2017

by Jose M Lechon

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3 votes

You could do any of those, but I would do Add -9 then the equation is -4=5x then divide everything by 5 then x = -.8

John Fawcett answered Dec 19, 2017

by John Fawcett

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